/// <summary>
/// Get the instance-level metadata for the server
/// </summary>
private async Task<ServerInfo> getServerInfo(string connectionString, string proxyUrl)
{
// Based on the input URL, get the different possible URLs that could point to the server
Queue<string> candidateUrls = getCandidateUrls(connectionString);
if (server == null || !candidateUrls.Contains(server.Uri))
{
// Try the different URLs
int count = candidateUrls.Count;
for (int i = 0; i < count; i++)
{
server = new Server(candidateUrls.Dequeue(), proxyUrl);
try
{
ServerInfo info = await server.GetServerInfo();
if (info != null)
{
m_cachedServerInfos.Add(info);
return info;
}
}
catch { } // swallow exception because we're intentionally trying different URL permutations
}
return null;
}
else
{
// Since the server was already assigned one of the candidate URLs, assume it is the correct
// one and retrieve server metadata directly
return await server.GetServerInfo();
}
}
private void tryGetResourceForAgsCandidateUrl(Queue<string> candidateUrls, string proxyUrl, Filter filter, object userState)
{
if (candidateUrls == null || candidateUrls.Count < 1)
{
OnGetCatalogFailed(new ExceptionEventArgs(new Exception(Strings.ExceptionDoneTryingallCandidateURLs), userState));
return;
}
string agsRestUrl = candidateUrls.Dequeue();
server = new Server(agsRestUrl, proxyUrl) { Filter = filter };
server.GetCatalogCompleted += (o, e) =>
{
OnGetCatalogCompleted(new GetCatalogCompletedEventArgs() { ChildResources = e.ChildResources, UserState = e.UserState });
};
server.GetCatalogFailed += (o, e) =>
{
tryGetResourceForAgsCandidateUrl(candidateUrls, proxyUrl, filter, userState);
};
server.GetCatalog(userState);
}
private void getChildResourcesForServer(Resource parentResource, Filter filter, object userState)
{
server = new Server(parentResource.Url, parentResource.ProxyUrl) { Filter = filter };
server.GetCatalogCompleted += (o, e) =>
{
OnGetChildResourcesCompleted(new GetChildResourcesCompletedEventArgs() { ChildResources = e.ChildResources, UserState = e.UserState });
};
server.GetCatalogFailed += (o, e) =>
{
OnGetChildResourcesFailed(e);
};
server.GetCatalog(userState);
}
